package com.projeto.bola.web.util;


import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import com.projeto.bola.web.HibernateUtil;

public class ConexaoHibernateFilter implements Filter{
	
	private SessionFactory sf;
	
	@Override
	public void destroy() {		
		
	}

	@Override
	public void doFilter(ServletRequest servletsFilter, ServletResponse ServletResponse,
			FilterChain chain) throws IOException, ServletException {
		try {
			
			this.sf.getCurrentSession().beginTransaction();
			chain.doFilter(servletsFilter, ServletResponse);
			this.sf.getCurrentSession().getTransaction().commit();
			this.sf.getCurrentSession().close();
		} catch (Throwable ex) {
			try {
				if(this.sf.getCurrentSession().getTransaction().isActive()){
					this.sf.getCurrentSession().getTransaction().rollback();
				}
			} catch (Throwable t) {				
				t.printStackTrace();
			}
			
			throw new ServletException(ex.getMessage());
		} finally {
			this.sf.getCurrentSession().close();
		}
		
	}

	@Override
	public void init(FilterConfig conf) throws ServletException {
		this.sf = HibernateUtil.getSession();		
	}

	

}
